Unit of Competency Mapping – Information for Teachers/Assessors – Information for Learners

MEA287 Mapping and Delivery Guide
Repair or overhaul aircraft oxygen system components

Version 1.0
Issue Date: May 2024


Qualification -
Unit of Competency MEA287 - Repair or overhaul aircraft oxygen system components
Description
Employability Skills
Learning Outcomes and Application This unit of competency requires application of hand skills, maintenance publications, test equipment and knowledge of oxygen component maintenance and hygiene requirements to repair and overhaul aircraft oxygen system components from fixed and rotary wing aircraft that are repaired or overhauled in aviation maintenance workshops during scheduled or unscheduled maintenance. Work may be performed individually or as part of a team.This unit of competency is part of the Avionic Certificate IV (Component Workshop Maintenance Stream) training pathway. The unit is used in workplaces that operate under the airworthiness regulatory systems of the Australian Defence Force (ADF) and the Civil Aviation safety Authority (CASA).
Duration and Setting X weeks, nominally xx hours, delivered in a classroom/online/blended learning setting.

Competency should be assessed in the work environment, or simulated work environment, using tools and equipment specified in maintenance manuals. It is also expected that applicable general and special-purpose tools and test equipment would be used where appropriate.

Ability to assess component serviceability and interpret parts requirements will be necessary to supplement the required evidence. The application of testing procedures should also clearly indicate knowledge of system operation before undertaking any action. Knowledge of system operation and the relationship of individual components will be necessary to supplement evidence of ability to troubleshoot component faults. The work plan should take account of applicable safety and quality requirements in accordance with the industry and regulatory standards.

The following conditions of assessment represent the requirements of the Regulators (ADF and CASA) and maintenance stakeholders and must be rigorously observed.

A person cannot be assessed as competent until it can be demonstrated to the satisfaction of the workplace assessor that the relevant elements and performance criteria of the unit of competency are being achieved under routine supervision across the following groups:

pressure vessels (testing and charging)

regulators, control valves and indicators

chemical oxygen generators

product hygiene.

This shall be established via the records in the Log of Industrial Experience and Achievement or, where appropriate, an equivalent Industry Evidence Guide (for details refer to the Companion Volume Assessment Guidelines).

Assessors must satisfy the requirements of the National Vocational Education and Training Regulator (Australian Skills Quality Authority, or its successors).

Prerequisites/co-requisites
Competency Field Aviation maintenance
Development and validation strategy and guide for assessors and learners Student Learning Resources Handouts
Activities
Slides
PPT
Assessment 1 Assessment 2 Assessment 3 Assessment 4
Elements of Competency Performance Criteria              
Element: Determine requirements
  • Component defect reports (removal tags) or customer order are correctly interpreted and matched by part and serial numbers
  • System components are inspected and/or operated through prescribed test procedures to establish serviceability or confirm defects, as required
  • Modification status is clearly established to assist in determining the overhaul requirements for the components
  • Extent of overhaul or repair is correctly identified and documented
       
Element: Troubleshoot oxygen system components
  • Available information from maintenance records and test results is used, where necessary, to assist in fault determination
  • Logical processes are used to ensure efficient and accurate troubleshooting
  • Specialist advice is obtained, where required, to assist with, or confirm, the fault and rectification requirement
  • System component faults are located and the causes of the faults are clearly identified
  • Fault rectification requirements are determined to assist in planning the repair
       
Element: Dismantle and inspect oxygen system components
  • System component parts are dismantled in accordance with maintenance manuals while observing all relevant work health and safety (WHS) requirements
  • Component parts are assessed for serviceability in accordance with the relevant maintenance documentation
  • Parts requiring specialist repair are tagged and repair instructions are accurately specified
  • Parts lists are compiled and processed in accordance with standard enterprise procedures
       
Element: Repair and/or modify oxygen system components
  • System component parts are repaired or replaced in accordance with the relevant maintenance documentation
  • Modification of components or parts is undertaken, where required, by relevant manufacturer's bulletins or procedures
       
Element: Assemble, test and adjust oxygen system components
  • Assembly of component parts is carried out within specified tolerances and in accordance with the appropriate maintenance documents
  • System components are adjusted or calibrated to operate within prescribed specifications
  • Finished components are tagged, sealed and packaged in accordance with specified procedures
  • Required maintenance documentation and modification records are completed and processed in accordance with standard enterprise procedures
       


Evidence Required

List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1.

Determine requirements

1.1

Component defect reports (removal tags) or customer order are correctly interpreted and matched by part and serial numbers

1.2

System components are inspected and/or operated through prescribed test procedures to establish serviceability or confirm defects, as required

1.3

Modification status is clearly established to assist in determining the overhaul requirements for the components

1.4

Extent of overhaul or repair is correctly identified and documented

2.

Troubleshoot oxygen system components

2.1

Available information from maintenance records and test results is used, where necessary, to assist in fault determination

2.2

Logical processes are used to ensure efficient and accurate troubleshooting

2.3

Specialist advice is obtained, where required, to assist with, or confirm, the fault and rectification requirement

2.4

System component faults are located and the causes of the faults are clearly identified

2.5

Fault rectification requirements are determined to assist in planning the repair

3.

Dismantle and inspect oxygen system components

3.1

System component parts are dismantled in accordance with maintenance manuals while observing all relevant work health and safety (WHS) requirements

3.2

Component parts are assessed for serviceability in accordance with the relevant maintenance documentation

3.3

Parts requiring specialist repair are tagged and repair instructions are accurately specified

3.4

Parts lists are compiled and processed in accordance with standard enterprise procedures

4.

Repair and/or modify oxygen system components

4.1

System component parts are repaired or replaced in accordance with the relevant maintenance documentation

4.2

Modification of components or parts is undertaken, where required, by relevant manufacturer's bulletins or procedures

5.

Assemble, test and adjust oxygen system components

5.1

Assembly of component parts is carried out within specified tolerances and in accordance with the appropriate maintenance documents

5.2

System components are adjusted or calibrated to operate within prescribed specifications

5.3

Finished components are tagged, sealed and packaged in accordance with specified procedures

5.4

Required maintenance documentation and modification records are completed and processed in accordance with standard enterprise procedures

Evidence required to demonstrate competency in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria under the specified conditions of assessment, and must include:

applying relevant WHS practices

using approved repair/overhaul procedures and processes relating to oxygen components

recognising the serviceability state and repair or overhaul requirements for oxygen pressure cylinders, valves, gauges, chemical generators, regulators, masks, pipes, hoses and fittings, and liquid dry breathing oxygen (LDBO) converters

applying logic processes, and using test equipment and appropriate wiring diagrams and manuals to isolate component faults

performing component testing to isolate/confirm component fault and assess post-repair/overhaul serviceability

correctly disassembling, inspecting component parts, repairing/replacing/modifying component parts and assembling oxygen components

applying product hygiene procedures.

The underlying skills inherent in this unit should be transferable across a range of repair or overhaul applications associated with oxygen system components. It is essential that the maintenance procedures are interpreted and applied to ensure quality and safety standards are fully observed, understood and complied with. Capability to interpret inspection procedures and specifications (allowable limits) and apply them in practice is critical.

Evidence of transferability of skills and knowledge related to repair is essential. This may be demonstrated through application across a representative range of oxygen components as listed in the Assessment Conditions.

Evidence required to demonstrate competency in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria and include knowledge of:

component and system operation

the basic function and operation of oxygen components to enable testing for fault isolation/confirmation, to determine repair or overhaul requirements, and serviceability status post-repair or overhaul

basic principles/functions relating to oxygen components and associated with:

pressure sensitive devices (bellows and controllers)

vacuum system generation

atmosphere and its properties.


Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assignment, checklist) and due date here

Assessment task 1: [title]      Due date:

(add new lines for each of the assessment tasks)


Assessment Tasks

Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1.

Determine requirements

1.1

Component defect reports (removal tags) or customer order are correctly interpreted and matched by part and serial numbers

1.2

System components are inspected and/or operated through prescribed test procedures to establish serviceability or confirm defects, as required

1.3

Modification status is clearly established to assist in determining the overhaul requirements for the components

1.4

Extent of overhaul or repair is correctly identified and documented

2.

Troubleshoot oxygen system components

2.1

Available information from maintenance records and test results is used, where necessary, to assist in fault determination

2.2

Logical processes are used to ensure efficient and accurate troubleshooting

2.3

Specialist advice is obtained, where required, to assist with, or confirm, the fault and rectification requirement

2.4

System component faults are located and the causes of the faults are clearly identified

2.5

Fault rectification requirements are determined to assist in planning the repair

3.

Dismantle and inspect oxygen system components

3.1

System component parts are dismantled in accordance with maintenance manuals while observing all relevant work health and safety (WHS) requirements

3.2

Component parts are assessed for serviceability in accordance with the relevant maintenance documentation

3.3

Parts requiring specialist repair are tagged and repair instructions are accurately specified

3.4

Parts lists are compiled and processed in accordance with standard enterprise procedures

4.

Repair and/or modify oxygen system components

4.1

System component parts are repaired or replaced in accordance with the relevant maintenance documentation

4.2

Modification of components or parts is undertaken, where required, by relevant manufacturer's bulletins or procedures

5.

Assemble, test and adjust oxygen system components

5.1

Assembly of component parts is carried out within specified tolerances and in accordance with the appropriate maintenance documents

5.2

System components are adjusted or calibrated to operate within prescribed specifications

5.3

Finished components are tagged, sealed and packaged in accordance with specified procedures

5.4

Required maintenance documentation and modification records are completed and processed in accordance with standard enterprise procedures

This field allows for different work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included.

Oxygen system components and related activities include:

Pressure vessels (testing and charging)

Regulators, control valves and indicators

Chemical oxygen generators

Product hygiene

Procedures and requirements include:

Industry standard procedures specified by manufacturers, regulatory authorities or the enterprise

Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.

Observation Checklist

Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice Yes No Comments/feedback
Component defect reports (removal tags) or customer order are correctly interpreted and matched by part and serial numbers 
System components are inspected and/or operated through prescribed test procedures to establish serviceability or confirm defects, as required 
Modification status is clearly established to assist in determining the overhaul requirements for the components 
Extent of overhaul or repair is correctly identified and documented 
Available information from maintenance records and test results is used, where necessary, to assist in fault determination 
Logical processes are used to ensure efficient and accurate troubleshooting 
Specialist advice is obtained, where required, to assist with, or confirm, the fault and rectification requirement 
System component faults are located and the causes of the faults are clearly identified 
Fault rectification requirements are determined to assist in planning the repair 
System component parts are dismantled in accordance with maintenance manuals while observing all relevant work health and safety (WHS) requirements 
Component parts are assessed for serviceability in accordance with the relevant maintenance documentation 
Parts requiring specialist repair are tagged and repair instructions are accurately specified 
Parts lists are compiled and processed in accordance with standard enterprise procedures 
System component parts are repaired or replaced in accordance with the relevant maintenance documentation 
Modification of components or parts is undertaken, where required, by relevant manufacturer's bulletins or procedures 
Assembly of component parts is carried out within specified tolerances and in accordance with the appropriate maintenance documents 
System components are adjusted or calibrated to operate within prescribed specifications 
Finished components are tagged, sealed and packaged in accordance with specified procedures 
Required maintenance documentation and modification records are completed and processed in accordance with standard enterprise procedures 

Forms

Assessment Cover Sheet

MEA287 - Repair or overhaul aircraft oxygen system components
Assessment task 1: [title]

Student name:

Student ID:

I declare that the assessment tasks submitted for this unit are my own work.

Student signature:

Result: Competent Not yet competent

Feedback to student

 

 

 

 

 

 

 

 

Assessor name:

Signature:

Date:


Assessment Record Sheet

MEA287 - Repair or overhaul aircraft oxygen system components

Student name:

Student ID:

Assessment task 1: [title] Result: Competent Not yet competent

(add lines for each task)

Feedback to student:

 

 

 

 

 

 

 

 

Overall assessment result: Competent Not yet competent

Assessor name:

Signature:

Date:

Student signature:

Date: